This build relies on immobilizing/slowing enemies and then dealing increased damage with the augmentations from passive skill choices.

Since you will be using Smoke Screen, but more specifically Caltrops, it's a good idea to take the skill Perfectionist, as it will reduce the cost of your caltrops and Smoke Screen by 10%. You will be using a lot of Caltrops.

Everything in this build relies on your ability to stun enemies, particularly enemies in large groups. Elemental Arrow (Frost Arrow) can help slow down enemies while dealing out a lot of damage. This can be switched out with Entangling Shot depending on your play style.

Immobilize your enemies with Caltrops, use Smoke Screen if you need to get away from enemies quickly. While they are stunned, attack with Rain of Vengeance, and then hold them in place with Elemental Arrow (Frost Arrow).

Bola Shot with Thunder Ball not only deals good damage to the group of enemies you are pummeling with Rain of Vengeance, but has a 35% chance to stun the targets by a further 1.5 seconds and keep them where you want them (away from you and in the middle of your attacks). You can substitute Thunder Ball for Acid Strike (which can be useful for bosses). If you are at level 57, you can use Bola Shot with Imminent Doom to deal out a lot more damage, but at the cost of a longer waiting period (again, useful for kiting around bosses).

Preparation with Battle Scars is very important for this build. Not only does it instantly replenish your discipline, but it also instantly restores 60% of your HP. This along with potions and certain follower abilities is the only HP regenerating skill you will have in this build.

The third passive skill is really a matter of choice. If you are looking for high crits (or just want flat increased damage) try Archery because if you use a bow and arrow combination you immediately get a 15% increase in damage. Thrill of the Hunt (immobilize enemies every 10 seconds which can save you if you are out of Discipline) and Tactical Advantage can be very useful as well.

This build works well with low-mid 30s to 57 level Demon Hunters, and is a solid build for late Nightmare and Hell difficulty. If you can find gear that increases your resistances and your chance to slow/stun/chill/freeze, along with a bow/crossbow that has cold damage, this will also improve the effectiveness of this build. As a bonus, the most critical parts of this build can be obtained by level 30.